72327670
May 19, 1969
Jan 18, 1972
GAGES FOR USE IN COMPARING THE CONTOUR OF AN ARTICLE WITH A STRAIGHT REFERENCE LINE AND FOR RECORDING THE CONTOUR COMPARED; AND SQUARENESS GAGES FOR MEASURING THE SQUARENESS AND STRAIGHTNESS OF SURFACES OF MANUFACTURED ARTICLES RELATIVE TO A REFERENCE PLANE, AND FOR MEASURING THE ANGULAR RELATION OF TWO OR MORE SUCH SURFACES OF A MANUFACTURED ARTICLE
Fancy Goods