Science: The Path of Progress: Jun. 28, 1937

Inventions on which patents were granted by the U. S. Patent Office during the past month included the following:

¶ A necktie constructed in telescoping sections so that it can be adjusted to any length.

¶ A golf club with a drill in the top of the shaft for boring a hole in which to insert a wooden tee when the ground is hard.

¶ A salt shaker with a rotatable brush inside the cap for clearing the perforations of caked salt.

¶ A refrigerator tray which freezes ice in spheres instead of cubes.

¶ A streamlined...

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