Description: This vintage Dialgraf Biorhythm Pocket Slide Rule comes with a case and instruction booklet. The copyright for these is listed as 1961. They became popular in the 1970's and has been in our home for years, not sure of purchase date. It is small, hand held. It was "designed to help you compare a readily visible record of your own individual biorhythmic condition for a full month. It was produced by Biorhythm Computers Inc.
Price: 12 USD
Location: Mission, Kansas
End Time: 2024-11-29T19:42:55.000Z
Shipping Cost: N/A USD
Product Images
Item Specifics
Restocking Fee: No
Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Country/Region of Manufacture: United States
