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024 _a28,130
037 _cReports / Technical Reports
040 _aFLL
_cFLL
_beng
041 _2eng
_aeng
082 _aZ73:2673, J5
100 _aEllis Ridsdale
_9692769
245 0 _cEllis Ridsdale
_aPatent assignments
250 _a3rd
260 _aNew York
_bBaker, Voorhis & Co., Inc.
_c1955
300 _alxviii,622p
_ccm.
942 _hZ73:2673, J5
_cREP
_2CC
999 _c1160668
_d1160668