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Patents for David Gould
Patents 1 - 3 of 3
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NumberDatePatenteeTitleType
1,438,234Dec. 12, 1922D. Gould, W.H. HartJoint for Zig-Zag Folding Rulesfolding rule joints
1,438,235Dec. 12, 1922D. Gould, W.H. HartJoint for Zig-Zag Folding Rulesfolding rule joints
1,438,236Dec. 12, 1922D. Gould, W.H. HartJoint for Zig-Zag Folding Rulesfolding rule joints
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