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Patents for Wyche D. Caldwell
Patents 1 - 2 of 2
Number	Title	Classification(s)
2,685,082	Position Indicating Device	250/233, 307/650, 33/707, 340/672, 340/686.3, 340/870.23, 341/11, 341/13, 377/17, 377/3
2,788,519	Position Indicating Device	250/233, 250/237G, 33/708, 340/672, 340/686.1, 340/686.3, 340/870.23, 377/17, 377/3

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