by
Hassler, Gerald L.
Author
Hassler, Gerald L., United States. Patent and Trademark Office
Format:
Call Number
QC761.2.P4 H37 1944
Publisher
U S Patent and Trademark Office,
Publication Date
1944
Holds:
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by
Chern, R.T.
Author
Chern, R.T., Provan, C.N.
Format:
Call Number
MAK 14820
Publication Date
1991
Holds:
Copies:
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