I don't know all of them but at least Singer, Pfaff and Viking are.
Japan!
about 100 years ago
Viking sewing machines are manufactured in Huskvarna, Sweden. The Viking brand is owned by the VSM Group AB. Viking began making sewing machines in 1872.
Kensew industrial sewing machines were made by Mistubishi.
The Lark sewing machine was manufactured by the British company Lark Sewing Machine Company. Founded in the early 20th century, the company produced a range of sewing machines that were popular during that era. The Lark sewing machines were known for their durability and ease of use, catering to both home sewers and industrial applications.
Machines with serial numbers beginning with NA were manufactured in 1951.
Frister and Rossmann sewing machines are primarily manufactured in Germany. The company has a long history of producing high-quality sewing machines since its establishment in the early 20th century. Over the years, their manufacturing has maintained a focus on precision engineering and craftsmanship typical of German manufacturing standards.
The Sears zigzag sewing machine model 158.12271 was manufactured in 1970. This model is part of a series of sewing machines produced during that era, which were popular for their versatility and features. If you have more specific questions about the machine, feel free to ask!
Juki and Brother make sewing machines that are good.
Sewing machines are very heavy. As such, there is no such thing as a portable sewing machine.
Singer sewing machines manufactured prior to 1900 have serial numbers consisting of numbers only. After 1900 the machine serial numbers have a single or two-letter prefix. The letters identify the year the machine was manufactured. A sewing machine bearing the serial number AI-000.001 would not exist, as Singer skipped the "AI" prefix as the "I" could be mistaken for the numeral "1". Sewing machines manufactured in 1948 bear serial numbers beginning with "AH" and "AJ", but none bear the prefix "AI".
No but the sewing machines thread the needle for you will help.