Class 47/12 - Tools

Subclass of Class 47 - Plant husbandry
Definition: Tools used in obtaining the sap or gum.
No. of patents: 4
Last issue date: 09/29/1981

Number	Title	Issue Date
4291492	Tree slashing apparatus An apparatus for a wheeled vehicle for slashing pine trees to enhance the production by natural means of terpenoid materials, and comprising a tree slashing device pivotally mounted at the end of an arm extending from the vehicle, and irritant applicator ...	09/29/1981
4195440	Fluid suction device A fluid suction device is disclosed. The device comprises a cylinder, a piston mounted for sliding movement into the cylinder, a shaft secured to the piston at one end and having a longitudinal bore therein communicating with the cylinder, a suction head ...	04/01/1980
4090327	Apparatus for treating trees An injector blade for injecting liquid into a tree wherein the blade has a concave cutting edge, a flat non-beveled first surface containing a cavity for ejectment of a treating solution onto the surface of a frill made during impact of the blade with a t...	05/23/1978
3959925	Mechanized bark hack A tree bark scoring apparatus adapted for transport and for operation aboard a moving, dirigible and speed controllable prime mover....	06/01/1976

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