Quotables
"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 4184008 | Float type metal-air battery A float type metal-air battery having an air chamber positioned at the center thereof, a weight positioned at the center bottom thereof, two electrolyte chambers positioned on both sides of the air chamber, and two cells positioned on both sides of the ai... | 01/15/1980 |
| 4138653 | Solid state tuner control A television tuner arrangement is disclosed including a wide band signal selecting circuit having a solid state voltage variable capacitance selectively controllable in accordance with the level of applied voltage and a channel selector control for contro... | 02/06/1979 |
| 4135833 | Railway bolster lug Bolster re-enforcement systems, applicable both to new and existing bolster designs, provide for pre-stressing the bottom bolster center plate region utilizing lugs transmitting tension forces in opposition to the stress pattern applied to the center regi... | 01/23/1979 |
| 4129684 | Float type metal-air battery A float type metal-air battery having an air chamber covered by an air pervious, water repellent membrane is provided with a protector lid to enclose the membrane. The lid includes at least one air intake opening. Shelter plates are interposed between the... | 12/12/1978 |
| 4062533 | Photocopy machine Photocopy machine having a feed module for successively feeding individual original documents from a stack thereof. Cooperating portions of the feed module and of the photocopying machine form a straight line original document feed path having an entryway... | 12/13/1977 |
| 3989238 | Photocopy machine Photocopy machine having a feed module for successively feeding individual original documents from a stack thereof. Cooperating portions of the feed module and of the photocopying machine form a straight line original document feed path having an entryway... | 11/02/1976 |
