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4 results. Displaying results 1 - 4.

Name/Title Maker and role Production date Object number
Boardroom Table Model from the PSFS building in Philadelphia Boardroom Table Model from the PSFS building in Philadelphia
Howe & Lescaze (estab. 1929, closed 1934), Designer
Pre 1932
2003.10.60
Patent Model - Improvement in Spring Bed-Bottoms Patent Model - Improvement in Spring Bed-Bottoms
James Spencer, Patentee
Jul 24 1877
2015.14.2426a,b
Patent Model - Method of Propelling Vessels by the Buoyancy of Air in Water Acting Against Inclined Surfaces Patent Model - Method of Propelling Vessels by the Buoyancy of Air in Water Acting Against Inclined Surfaces
Sylvester Hall, Patentee
Nov 06 1843
2015.14.35
Patent Model - Improved Method of Utilizing Exhaust-Steam Patent Model - Improved Method of Utilizing Exhaust-Steam
Treat Prosser (b.1827, d.1895), Patentee
Treat Prosser (b.1827, d.1895), Assignee
M.C. Darling, Assignee
K.A. Darling, Assignee
Sep 22 1863
2015.14.444a,b
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