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Hair Clipper.

Description: Patent for hair clippers that simplifies construction, reduces vibration, and improves efficiency.
Date: May 16, 1922
Creator: Monroe, Collier
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Combined Generator and Burner

Description: Letter from S. A. Christian to the United States Patent Office to propose an invention of new and useful improvements in combine generators and burners. This is to use with lighter hydro-carbons and adapted for services in stoves or any heat burner. The diagram showed the details of the blueprint of the device.
Date: May 16, 1913
Creator: Christian, Sidney A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Adjustable Lamp-Shade.

Description: Patent for a simplified, detachable, and adjustable lamp shade that is "more practical and efficient without increasing the cost of manufacture" (lines 27-29), including illustrations.
Date: May 16, 1916
Creator: Landers, Charles G.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Crutch.

Description: Patent for crutches with adjustable pneumatic cushioned arm rests, adjustable length, absorbent hand grip, and a detachable vertical leg rest.
Date: May 16, 1916
Creator: Gregson, William
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Ash-Pan

Description: Patent for an ash pan for trains. Illustrations included.
Date: May 16, 1911
Creator: Spratley, George
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Composition For Staining Wood.

Description: Patent for a “paint or stain, which, when applied, will harden on the common woods of commerce, render them durable and smooth, and give them the exact appearance of black walnut” (lines 15-18).
Date: May 16, 1882
Creator: Gloger, Anton F., Jr. & Gloger, Joseph P.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Air-Pump.

Description: Patent for an air pump improvement that simpler and cheaper to produce. It also provides a description of "the combination and arragement of parts" (lines 14-15), including illustrations.
Date: May 16, 1916
Creator: Runge, Friedrich Albert
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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