PTO

• (initialism):

  Audio (US):

  (file)

PTO

1. Initialism of patent and trademark office. (United States Patent and Trademark Office), usually abbreviated USPTO.

• (United States Patent and Trademark Office): USPTO

• United States Patent and Trademark Office on Wikipedia.Wikipedia

PTO (plural PTOs)

1. Initialism of parent-teacher organization.
2. Initialism of paid time off.
3. Initialism of power take-off, a powered shaft for driving auxiliary equipment.

• (parent-teacher organization): PTA (“parent-teacher association”)

PTO

2. Initialism of please turn over (written at the end of the text on a page to say that it continues overleaf)

• OPT, OPt, OTP, TPO, oPt, opt, opt., pot, top