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<center>'''US Patents'''</center> | <center>'''US Patents:'''</center> | ||
#USPATENTS 1341418/20 e 1343253/20 (1927-1933) US - Sandblast & Tube w/ frange; | #USPATENTS 1341418/20 e 1343253/20 (1927-1933) US - Sandblast & Tube w/ frange; | ||
#USPatent 1341418/20 (1927-1929) US - Sandblast; | #USPatent 1341418/20 (1927-1929) US - Sandblast; | ||
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<center>'''CA Patents'''</center> | <center>'''CA Patents:'''</center> | ||
#CA PATENT 209845/21 &197365/20 (1928-1934) CA - Sandblast & Tube w/ frange; | #CA PATENT 209845/21 &197365/20 (1928-1934) CA - Sandblast & Tube w/ frange; | ||
#CA PATENT 209845/21 (1928-1929) CA - Sandblast; | #CA PATENT 209845/21 (1928-1929) CA - Sandblast; |