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US Patent: 406,207
Whiffletree
Patentee:
Louis F. Flatau (exact or similar names) - Pittsburg, TX

USPTO Classifications:

Tool Categories:
transportation : wagons and carts : wagon and cart couplings

Assignees:
None

Manufacturer:
B. F. Avery & Sons - Louisville, KY

Witnesses:
T. G. Twyman
Adolph G. Renan
Fred G. Dieterich
Patent Dates:
Applied: Apr. 09, 1889
Granted: Jul. 02, 1889

Patent Pictures: [ 1 | 2 ]
Paten 406,207 - edited drawing
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Description:
Patent date appears in a write-up for steel single- and double-trees produced by B.F. Avery & Sons, Louisville, KY.

One of the unique features of the design is the swinging hooks, which "enclose" the ends of the traces when in the working position.

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