Vashon, George S., & co., Washington, D.C. [from old catalog] · Washington, D.C., G. S. Vashon & co. · leaf 49
awings. The freeends of the arms are provided with drawing instruments which are adjustable.The point of connection between the two intermediate arms is fixed. 57. Diagonal catch and hand gear used in large blowing and pumpingengines. 58. Ball and socket tube joint. 59. Toe and lifter for working…
Patents · Inventions
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