Patents for Irene Sornberger


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Patents for Irene Sornberger
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
CA-243,035	Sep. 16, 1924	L.S. Hall	Pipe threading machine	pipe threading machines
CA-248,427	Mar. 31, 1925	L.S. Hall	Pipe threading machine	pipe threading machines