Waits' Compendium Errata and Addendum

A very useful resource is A Safety Razor Compendium by Robert K. Waits.
I have v1.2 and have found the following mistakes or inaccuracies.

I you find other problems in this great book, let me know and I'll add them here.

Introduction

Page vi

The term “safety razor” was not coined by the Kampfe brothers. See my research here.

Brandt

Patent number is 807172, not 802172
Coronia

Patent number is 775379, not 775397
Firm Blade

“Uses one-half of a split Gillette-type double-edge blade” No, it doesn't. Won't fit.
Fonta

“Wrexham, Wales, England” — Wales is not part of England. There are several patents:
GB597918 ― 1948-02-05
GB640185 ― 1950-07-12
CH279397 ― 1951-11-30
CH279398 ― 1951-11-30
GB672947 ― 1952-05-28
GB672948 ― 1952-05-28
GB690828 ― 1953-04-29
Gravin Heat Shaver

Patent is US2324148 Moses M. Gravin - 13 July 1943
Hohlraum Rasier-Gerät

The name is Hohlraum with an h in the middle.
Krisp

26355 is patent GB190826355 2168 is patent GB190902168 “Circa 1919” is ten years later than the patents
Rally Roller Shaver

Inventor name is: Jonas Åke Gregorius Malmberg German patent: DE830305 US Patent: US2637902 Also, there is no such place as “Esjukstuna” in Sweden, but razors were manufactured in “Eskilstuna” (e.g. Heljestrand).
Schrägschnitt Hohlraum-Rasier-Gerät

The name is Hohlraum with an h in the middle.
Also, the location is Bollwerk, not Boliwerk. .
SENCA

Patent is by Philip (not Peter) H. Unsinger
Supramat

378772 is 378722 and refers to Swiss patent CH378722
Ucan

The patent is US1332587
Wanie Rollband Blades

The patent number should be 608066