improvements in the scientific ap- the peculiar character of the supporting table permitting this movement without difficulty, Mr. William Weiss, of New Orleans, La., has patented an The machine has been in use in Philadelphia for some ‘improved and simple device for opening tin cans, which ment… … ing board or table. and as the movable which is handy and parts of the appara- compact and can tus are above the be transported very cloth the maripulation of the machine is effected without arecording micrometer, and a polarizing solar eyepiece, conveniently, has been patented by Mr. Bernhard…
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