Old, antique electric organ a.o. HAMMOND.: history / information 1912 - 1981

Description

I
offer a collection of
over 300
(!)
old patents from Laurens Hammond or companies in relation to him - Hammond Co., Hammond Organ Co., Hammond Corp..., published between 1912 and 1981 in USA (246 patents) , Great Britain and Australia (all in English).
All patents are complete, that means contain the full text and all (often beautiful and informative - see example) drawings.
Most - but not all - of the patents are busy with
organs and other inventions connected to music / musical instruments.
The first organ patent is from 1934, patents before are related to other things like clocks,
stereoscopic motion-picture device.
The collection is created by the seller and is the world best overview about HAMMOND patent!
Delivery is as pdf-file collection (*.pdf) on CD
(not as printed book!)
.
Each file contains one complete patent.
You
need only the wellknown free programme Acrobat Reader or a similar one to open the files. You can also print each file. If you take for example "antique style paper" you can make nice pictures for wall decoration for yourself.
Also included is an Excel list with patent numbers, datas of issue, patent titles and often also inventors and/or owners of the patents.
The list is linked directly to the patent files so that each patent will be open easily if you click on the link.
This is a very comfortable way to exploit the extensive document material.
It is not really a problem if you do not have the programme
Excel
from Microsoft. Look for "Excel Viewer" at google and you will find freeware version of an
Excel Viewer
programme. So you can open and print the Excel table without problem!
Additionally the patent table is also included in the html format - you can open it with any common browser.
Of course you can open each patent file also direct without using of the Excel table / html file!!
Copyright of the CDs has only the seller!
Shipping worldwide as airmail letter.
You can also buy more patent collections - the shipping price will not increase!