Patent Model - Improvement in Folding Gratings for Windows
Maker and role
Calvin Steckel, Patentee
Jul 17 1877
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12 x 10 1/2 x 2 1/4" (30.5 x 26.7 x 5.7cm)
Steckel's patent was "intended as a substitute for the fixed iron gratings or bars in basement, store, and other windows, so as to provide a shutter that may be folded and turned, making the room more cheerful, and facilitating the cleaning of the windows, &c., while combining, when locked, the same degree of safety as the bars." (Patent Number 193,195)
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