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Patent No. 5377411

Hair Cutting Appliance

A haircutting appliance comprises an enclosed housing having a hollow handle connecting the housing to a vacuum source to carry away cut hairs from a subject's head.

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Attorney: Hsu; Roger Y. K.


Number of patents: 10
Last date: July 18, 1989

NumberTitleIssue Date
4849123Drive train fluids comprising oil-soluble transition metal compounds
Improved automatic transmission fluids (ATF's) and gear lubricant compositions comprising a low concentration of an oil-soluble transistion metal compound are provided. The transition metal compound ameliorates low temperature thickening in ATF's and high...
07/18/1989
4843126Aminoplast catalyst and compositions
Aminoplast compositions are cured using a sulfur and phosphorus containing catalyst....
06/27/1989
4806210H2 S and alcohol recovery process
A process for the recovery of alcohols and hydrogen sulfide from a thiophosphate containing mixture is disclosed....
02/21/1989
4792410Lubricant composition suitable for manual transmission fluids
A lubricant mixture suitable for a manual transmission fluid comprising: (a) a boronated overbased alkali metal or alkaline earth metal salt selected from the group consisting of sulfonates, phenates, oxylates, carboxylates and mixtures thereof; (b) a friction...
12/20/1988
4785095N-substituted thio alkyl phenothiazines
This invention describes phenothiazine derivatives which are N-substituted and which contain an additional sulfur molecule in the N substituent....
11/15/1988
4781730Fuel additive comprising a hydrocarbon soluble alkali or alkaline earth metal compound and a demulsifier
The compositions described herein of an alkali metal or alkaline earth metal containing composition with or without a hydrocarbon soluble dispersant which are combined with the reaction product of the carboxylic acid and a polyhydroxyalkanolamine. The res...
11/01/1988
4471091Combinations of carboxylic acylating agents substituted with olefin polymers of high and low molecular weight mono-olefins, derivatives thereof, and fuels and lubricants containing same
A composition comprising (A) the reaction product of (A)(1) one or more alpha-beta olefinically unsaturated carboxylic acid reagents containing 2 to about 20 carbon atoms exclusive of the carboxyl-based groups, with (A)(2) one or more olefin polymers of at lea...
09/11/1984
4435297Carboxylic acid derivatives of alkanol tertiary monoamines
Nitrogen-containing phosphorus-free carboxylic acid derivatives made by reaction of an acylating agent with an alkanol tertiary monoamine are described. Typically the carboxylic acylating agent is an alkyl or alkenyl succinic anhydride containing about 20...
03/06/1984
4409000Combinations of hydroxy amines and carboxylic dispersants as fuel additives
Combinations of certain hydroxy amines, particularly the "Ethomeens," and hydrocarbon-soluble carboxylic dispersants are useful as engine and carburetor detergents for normally liquid fuels. The preferred compositions are those in which the carboxylic dis...
10/11/1983
4400178Liquid fuels containing polyamine dispersants
Certain polyamines are useful carburetor dispersants for liquid fuel compositions. Among the suitable polyamines are diamines which may be prepared by the Mannich reaction of certain primary or secondary amines with an aldehyde such as formaldehyde and an...
08/23/1983
 
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